Data Analyst
Statistics questions
21 questions on Statistics for data analysts, easiest first.
Easy 4
Medium 6
Hard 11
- Overall rate goes the other wayhard
- Stopping a test earlyhard
- Detecting a small lifthard
- PERCENTILE_CONT vs PERCENTILE_DISChard
- How reliable is a fraud flaghard
- Randomised by user, analysed by sessionhard
- Halving the margin of errorhard
- Worst stores improved on their ownhard
- Correlation near zerohard
- Grand total of an average pivothard
- Combining two store medianshard